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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5560) Avoid RegionServer GC caused by timed-out calls
Date Sat, 10 Mar 2012 22:54:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226952#comment-13226952
] 

Phabricator commented on HBASE-5560:
------------------------------------

stack has commented on the revision "[jira][HBASE-5560] Avoid RegionServer GC caused by timed-out
calls".

  Excellent lads.  Good one.  +1 . And +1 on 90seconds rather than 15 minutes (though this
patch seems to have 15minutes still in spite of your comment Dhruba).

  Reminds me of another ugly one; the queue of incoming rpc requests which was hard-coded
at 100 outstanding requests * the number of handlers (So, if batch puts, could be 2MB*100*100
of unaccounted for memory when server was working hard).

REVISION DETAIL
  https://reviews.facebook.net/D2241

                
> Avoid RegionServer GC caused by timed-out calls
> -----------------------------------------------
>
>                 Key: HBASE-5560
>                 URL: https://issues.apache.org/jira/browse/HBASE-5560
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>             Fix For: 0.94.0, 0.96.0
>
>         Attachments: D2241.1.patch, D2241.2.patch
>
>
> The HBaseRpcServer queues up rpc responses if the socket connection to the client is
not yet ready to receive data. Calls are queued here until a 15 minute timeout occurs. I am
able to generate a full GC when I artificially make a client read rpc-responses very slowly.
This jira is to make this 15 minute time configurable.

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